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/*
* Copyright 2000-2014 JetBrains s.r.o.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.intellij.codeInsight.editorActions;
import com.intellij.openapi.editor.RawText;
import com.intellij.openapi.util.Comparing;
import com.intellij.openapi.util.text.StringUtil;
import java.awt.datatransfer.DataFlavor;
import java.awt.datatransfer.Transferable;
import java.awt.datatransfer.UnsupportedFlavorException;
import java.io.IOException;
import java.io.StringReader;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
public class TextBlockTransferable implements Transferable {
private final Collection<TextBlockTransferableData> myExtraData;
private final RawText myRawText;
private final String myText;
private final DataFlavor[] myTransferDataFlavors;
public TextBlockTransferable(String text, Collection<TextBlockTransferableData> extraData, RawText rawText) {
myText = text;
myExtraData = extraData;
myRawText = rawText;
List<DataFlavor> dataFlavors = new ArrayList<DataFlavor>();
Collections.addAll(dataFlavors, DataFlavor.stringFlavor, DataFlavor.plainTextFlavor);
final DataFlavor flavor = RawText.getDataFlavor();
if (myRawText != null && flavor != null) {
dataFlavors.add(flavor);
}
for(TextBlockTransferableData data: extraData) {
final DataFlavor blockFlavor = data.getFlavor();
if (blockFlavor != null) {
dataFlavors.add(blockFlavor);
}
}
myTransferDataFlavors = dataFlavors.toArray(new DataFlavor[dataFlavors.size()]);
}
@Override
public DataFlavor[] getTransferDataFlavors() {
return myTransferDataFlavors;
}
@Override
public boolean isDataFlavorSupported(DataFlavor flavor) {
DataFlavor[] flavors = getTransferDataFlavors();
for (DataFlavor flavor1 : flavors) {
if (flavor.equals(flavor1)) {
return true;
}
}
return false;
}
@Override
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException, IOException {
try {
for(TextBlockTransferableData data: myExtraData) {
if (Comparing.equal(data.getFlavor(), flavor)) {
return data;
}
}
if (myRawText != null && Comparing.equal(RawText.getDataFlavor(), flavor)) {
return myRawText;
}
else if (DataFlavor.stringFlavor.equals(flavor)) {
return myText;
}
else if (DataFlavor.plainTextFlavor.equals(flavor)) {
return new StringReader(myText);
}
}
catch(NoClassDefFoundError e) {
// ignore
}
throw new UnsupportedFlavorException(flavor);
}
public static String convertLineSeparators(String text,
String newSeparator,
Collection<TextBlockTransferableData> transferableDatas) {
if (transferableDatas.size() > 0){
int size = 0;
for(TextBlockTransferableData data: transferableDatas) {
size += data.getOffsetCount();
}
int[] offsets = new int[size];
int index = 0;
for(TextBlockTransferableData data: transferableDatas) {
index = data.getOffsets(offsets, index);
}
text = StringUtil.convertLineSeparators(text, newSeparator, offsets);
index = 0;
for(TextBlockTransferableData data: transferableDatas) {
index = data.setOffsets(offsets, index);
}
return text;
}
else{
return StringUtil.convertLineSeparators(text, newSeparator);
}
}
}
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